六环石改性杨木木材的制备

Preparation of Poplar Wood Modified by Hexacyclic Stone

为提高木材利用率,改善人工速生林密度低、强度低、易皱缩变形等不足,本文以人工速生杨木为研究对象,以内蒙古自治区特有的矿物六环石为改性材料,采用真空加压浸渍改性技术将六环石注入木材中,并对改性材的性能进行测试与表征。结果表明:六环石改性杨木木材的最佳浸渍次数为8次,单次浸渍工艺为真空浸渍120 min,常压浸渍5 min,再进行绝干处理。改性后的木材其平均增重率及吸液率分别为15.33%和146.37%,较素材的气干密度和全干密度分别提高了23.25%和21.95%。研究结果为改性材的制备和利用提供了新思路。

In order to improve the utilization rate of wood and solve the shortcomings of low density,low strength,and easy shrinkage deformation of artificial fast-growing forest.In this study,the artificial fast-growing poplar was taken as the research object,and the unique mineral hexagonal stone in Inner Mongolia Autonomous Region was used as the modified material.The hexagonal stone was impregnated into the wood by vacuum pressurized impregnation modification technology,and then the properties of modified wood were tested and characterized.The results showed that the optimum impregnation times of poplar wood modified by hexacyclic stone were 8 times.The single impregnation process was vacuum impregnation for 120 min,atmospheric pressure impregnation for 5 min,and then absolutely dried.The average weight gain rate and liquid absorption rate of the modified wood were 15.33%and 146.37%,respectively.The air-dry density and total dry density of the modified wood were 23.25%and 21.95%higher than those of the raw materials,which provided new ideas for the preparation and utilization of modified wood.